Wide coverage light emitting and driving device package, backlight unit, and display apparatus

Abstract

A wide-area light-emitting driving package, a backlight unit, and a display device are disclosed. The wide-area light-emitting driving package may include a substrate, a terminal layer formed on one surface of the substrate, a wiring layer formed on the opposite surface of the substrate and electrically connected to the terminal layer through through-electrodes, at least one light-emitting device mounted on a portion of the wiring layer and disposed at a peripheral region of the substrate, a driving element mounted on another portion of the wiring layer, disposed at a central region of the substrate, and configured to drive the light-emitting device, and a protective member covering and protecting the light-emitting device and the driving element.

What is claimed is: 
     
         1 . A wide coverage light emitting and driving device package comprising:
 a substrate;   a terminal layer formed on one surface of the substrate;   a wiring layer formed on the opposite surface of the substrate and electrically connected to the terminal layer through through-electrodes;   at least one light-emitting device mounted on a portion of the wiring layer and disposed at a peripheral region of the substrate;   a driving element mounted on another portion of the wiring layer, disposed at a central region of the substrate, and configured to drive the light-emitting device; and   a protective member covering and protecting the light-emitting device and the driving element.   
     
     
         2 . The wide coverage light emitting and driving device package of  claim 1 , wherein the light-emitting device includes a plurality of light-emitting devices which are arranged symmetrically around the driving element in diagonal or cross directions to provide wide coverage of the optical path. 
     
     
         3 . The wide-area light-emitting driving package of  claim 2 , wherein the light-emitting devices comprise at least two LEDs arranged respectively in a front-left, front-right, rear-left, and rear-right direction with respect to the driving element, or arranged respectively in a front, rear, left, and right direction with respect to the driving element. 
     
     
         4 . The wide-area light-emitting driving package of  claim 3 , wherein the light-emitting devices includes at least one selected from a red LED, a green LED, a blue LED, a white LED, and combinations thereof. 
     
     
         5 . The wide-area light-emitting driving package of  claim 1 ,
 wherein the light-emitting device includes a plurality of light-emitting devices, wherein the terminal layer comprises:   at least one pad portion formed at an outer corner region of a bottom surface of the substrate, and   an extension portion extending from the at least one pad portion toward a central region of the bottom surface of the substrate, and wherein the wiring layer comprises   a first wiring portion having one part electrically connected to a pad through-electrode formed in the at least one pad portion and another part connected to the driving element;   a second wiring portion having one part electrically connected to an extension through-electrode formed in the extension portion and another part connected to the driving element; and   a third wiring portion having one part connected to the driving element, another part connected to the light-emitting devices, and another part electrically connected to the pad through-electrode.   
     
     
         6 . The wide-area light-emitting driving package according to  claim 5 , wherein the third wiring portion is formed in a spiral shape that gradually expands outwardly from the driving element, through all the light-emitting devices, to the pad through-electrode in an angular or rounded manner. 
     
     
         7 . The wide-area light-emitting driving package of  claim 1 , wherein
 the light-emitting device is a micro-LED or a mini-LED;   the driving element is a driver IC having at least one channel for driving the micro-LED; and   the protective member comprises at least one material selected from silicone, epoxy, phosphor layers, quantum dots, light-transmissive materials, and combinations thereof, molded on the wiring layer.   
     
     
         8 . The wide-area light-emitting driving package of  claim 7 ,
 wherein the light-emitting device includes a plurality of light-emitting devices,   wherein the protective member comprises at least one selected from a planar molding member having a flat light-emitting surface, a single concentric molding member formed in a circular or polygonal shape with multiple concentric circles centered around a single point, a prism-shaped molding member configured to disperse light by partitioning into regions corresponding to the light-emitting devices, a multiple concentric molding member formed in circular or polygonal shapes with multiple concentric circles centered around respective multiple points corresponding to the light-emitting devices, and combinations thereof.   
     
     
         9 . A backlight unit comprising the wide-area light-emitting driving package of  claim 1 . 
     
     
         10 . A display device comprising the wide-area light-emitting driving package of  claim 1 .